STM32之俄罗斯方块
1.硬件平台
- STM32开发板
- 3.5寸LCD屏(16位并口8080时序)
- 字库存储W25Q64(SPI)
- 4个按键
2.示例效果





3.软件设计
 3.1 绘制单个方块函数
/*************绘制单个方块**************/
void Lcd_DrawDiamond(u16 x,u16 y,u16 c)
{
  u16 i;
  LcdWriteReg(0x2A);//设置x坐标
  LcdWriteData((x>>8)&0xff);//x坐标高8位
  LcdWriteData(x&0xff);//x坐标低8位
  LcdWriteData(((x+8)>>8)&0xff);//x坐标高8位
  LcdWriteData((x+8)&0xff);//x坐标低8位
  LcdWriteReg(0x2B);//设置Y坐标
  LcdWriteData((y>>8)&0xff);//Y坐标高8位
  LcdWriteData(y&0xff);//Y坐标低8位
  LcdWriteData(((y+8)>>8)&0xff);//Y坐标高8位
  LcdWriteData((y+8)&0xff);//Y坐标低8位
  LcdWriteReg(0x2C);//设置x坐标
  for(i=0;i<9*9;i++)LcdWriteData(c);
}
3.2 清空一行显示
/******************消除一行*******************/
void Lcd_ClearOneLineDisplay(u16 y,u16 c)
{
  u16 i=0;
  for(i=2;i<LCD_WIDTH-98;i+=10)
  {
    Lcd_DrawDiamond(i,y,c);
  }
}
3.3 定义屏幕大小数组,保存方块图形掉落位置状态信息,显示区域宽度为220,高度为480
u8 shape_place_stat[49][24]=
{
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},//第一行y=0的状态信息
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},//第二行y=10的状态信息
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},//y=20
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},//y=30
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},//y=40 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},//y=50
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},//y=200
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},//y=300
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},//y=400
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}, 
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},//y=460
  {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},//y=470  
  {1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1},//最后一行为状态 
};
 3.4 更新当前状态到二维数组中
/*更新一个状态到二维数组中*/
void Lcd_Refreshbuff(u16 x,u16 y,u8 stat)
{
  shape_place_stat[y/10][x/10+1]=(stat&0x01);
}
 3.5 设置每个方块种类颜色,绘制各个方块
 /*每一个种类的颜色*/
/*
    1  -- DARKBLUE --Drawshape_color[0]
    2,3 -- BRRED  --Drawshape_color[1]
    4,5,6,7 -- BLUE --Drawshape_color[2]
    8,9,10,11,12,13,14,15 -- GRAY --Drawshape_color[3]
    16,17,18,19  --BLACK -- Drawshape_color[4]
*/
const u16 Drawshape_color[]={DARKBLUE,BRRED,BLUE,GRAY,BLACK};
/*******************绘制一个俄罗斯方块***************************
**形参:x,y -- 要显示的位置
**      what  --要绘制的方块序号(1~19)
**      c   --方块颜色
**      stat  --更新到二维数组中的状态(0表示清除,1表示写入状态)
*******************************************************************/
void Lcd_Drawshape(u16 x,u16 y,u8 what,u16 c,u8 stat)
{
  switch (what)
  {
    case 1:
    {
      Lcd_DrawDiamond(x,y,c);
      Lcd_DrawDiamond(x+10,y,c);
      Lcd_DrawDiamond(x,y+10,c);
      Lcd_DrawDiamond(x+10,y+10,c);
      
      Lcd_Refreshbuff(x,y,stat);
      Lcd_Refreshbuff(x+10,y,stat);
      Lcd_Refreshbuff(x,y+10,stat);
      Lcd_Refreshbuff(x+10,y+10,stat);
    }
    break;
    
    case 2:
    {
      Lcd_DrawDiamond(x,y,c);
      Lcd_DrawDiamond(x+10,y,c);
      Lcd_DrawDiamond(x+20,y,c);
      Lcd_DrawDiamond(x+30,y,c);
      Lcd_Refreshbuff(x,y,stat);
      Lcd_Refreshbuff(x+10,y,stat);
      Lcd_Refreshbuff(x+20,y,stat);
      Lcd_Refreshbuff(x+30,y,stat);
    }
    break;
    
    case 3:
    {
      Lcd_DrawDiamond(x,y,c);
      Lcd_DrawDiamond(x,y+10,c);
      Lcd_DrawDiamond(x,y+20,c);
      Lcd_DrawDiamond(x,y+30,c);
      
      Lcd_Refreshbuff(x,y,stat);
      Lcd_Refreshbuff(x,y+10,stat);
      Lcd_Refreshbuff(x,y+20,stat);
      Lcd_Refreshbuff(x,y+30,stat);
    }
    break;
    
    case 4:
    {
      Lcd_DrawDiamond(x+10,y,c);
      Lcd_DrawDiamond(x,y+10,c);
      Lcd_DrawDiamond(x+10,y+10,c);
      Lcd_DrawDiamond(x+20,y+10,c);
  
      Lcd_Refreshbuff(x+10,y,stat);
      Lcd_Refreshbuff(x,y+10,stat);
      Lcd_Refreshbuff(x+10,y+10,stat);
      Lcd_Refreshbuff(x+20,y+10,stat);
    }
    break;
    
    case 5:
    {
      Lcd_DrawDiamond(x+10,y+10,c);
      Lcd_DrawDiamond(x,y,c);
      Lcd_DrawDiamond(x,y+10,c);
      Lcd_DrawDiamond(x,y+20,c);
      
      Lcd_Refreshbuff(x+10,y+10,stat);
      Lcd_Refreshbuff(x,y,stat);
      Lcd_Refreshbuff(x,y+10,stat);
      Lcd_Refreshbuff(x,y+20,stat);
    }
    break;
    case 6:
    {
      Lcd_DrawDiamond(x,y+10,c);
      Lcd_DrawDiamond(x+10,y,c);
      Lcd_DrawDiamond(x+10,y+10,c);
      Lcd_DrawDiamond(x+10,y+20,c);
      
      Lcd_Refreshbuff(x,y+10,stat);
      Lcd_Refreshbuff(x+10,y,stat);
      Lcd_Refreshbuff(x+10,y+10,stat);
      Lcd_Refreshbuff(x+10,y+20,stat);
    }
    break;
    
    case 7:
    {
      Lcd_DrawDiamond(x+10,y+10,c);
      Lcd_DrawDiamond(x,y,c);
      Lcd_DrawDiamond(x+10,y,c);
      Lcd_DrawDiamond(x+20,y,c);
      
      Lcd_Refreshbuff(x+10,y+10,stat);
      Lcd_Refreshbuff(x,y,stat);
      Lcd_Refreshbuff(x+10,y,stat);
      Lcd_Refreshbuff(x+20,y,stat);    
    }
    break;
  
    case 8:
    {
      Lcd_DrawDiamond(x,y,c);
      Lcd_DrawDiamond(x,y+10,c);
      Lcd_DrawDiamond(x,y+20,c);
      Lcd_DrawDiamond(x+10,y+20,c);
      
      Lcd_Refreshbuff(x,y,stat);
      Lcd_Refreshbuff(x,y+10,stat);
      Lcd_Refreshbuff(x,y+20,stat);
      Lcd_Refreshbuff(x+10,y+20,stat);
    }
    break;
    
    case 9:
    {
      Lcd_DrawDiamond(x,y,c);
      Lcd_DrawDiamond(x,y+10,c);
      Lcd_DrawDiamond(x+10,y,c);
      Lcd_DrawDiamond(x+20,y,c);
      
      Lcd_Refreshbuff(x,y,stat);
      Lcd_Refreshbuff(x,y+10,stat);
      Lcd_Refreshbuff(x+10,y,stat);
      Lcd_Refreshbuff(x+20,y,stat);
    }
    break;
    
    case 10:
    {
      Lcd_DrawDiamond(x,y,c);
      Lcd_DrawDiamond(x+10,y,c);
      Lcd_DrawDiamond(x+10,y+10,c);
      Lcd_DrawDiamond(x+10,y+20,c);
      
      Lcd_Refreshbuff(x,y,stat);
      Lcd_Refreshbuff(x+10,y,stat);
      Lcd_Refreshbuff(x+10,y+10,stat);
      Lcd_Refreshbuff(x+10,y+20,stat);
    }
    break;
    
    case 11:
    {
      Lcd_DrawDiamond(x,y+10,c);
      Lcd_DrawDiamond(x+10,y+10,c);
      Lcd_DrawDiamond(x+20,y+10,c);
      Lcd_DrawDiamond(x+20,y,c);
      
      Lcd_Refreshbuff(x,y+10,stat);
      Lcd_Refreshbuff(x+10,y+10,stat);
      Lcd_Refreshbuff(x+20,y+10,stat);
      Lcd_Refreshbuff(x+20,y,stat);
    }
    break;
    
    case 12:
    {
      Lcd_DrawDiamond(x+10,y,c);
      Lcd_DrawDiamond(x+10,y+10,c);
      Lcd_DrawDiamond(x+10,y+20,c);
      Lcd_DrawDiamond(x,y+20,c);
      
      Lcd_Refreshbuff(x+10,y,stat);
      Lcd_Refreshbuff(x+10,y+10,stat);
      Lcd_Refreshbuff(x+10,y+20,stat);
      Lcd_Refreshbuff(x,y+20,stat);
    }
    break;
    
    case 13:
    {
      Lcd_DrawDiamond(x,y,c);
      Lcd_DrawDiamond(x+10,y,c);
      Lcd_DrawDiamond(x+20,y,c);
      Lcd_DrawDiamond(x+20,y+10,c);
      
      Lcd_Refreshbuff(x,y,stat);
      Lcd_Refreshbuff(x+10,y,stat);
      Lcd_Refreshbuff(x+20,y,stat);
      Lcd_Refreshbuff(x+20,y+10,stat);
    }
    break;
    
    case 14:
    {
      Lcd_DrawDiamond(x,y,c);
      Lcd_DrawDiamond(x+10,y,c);
      Lcd_DrawDiamond(x,y+10,c);
      Lcd_DrawDiamond(x,y+20,c);
      
      Lcd_Refreshbuff(x,y,stat);
      Lcd_Refreshbuff(x+10,y,stat);
      Lcd_Refreshbuff(x,y+10,stat);
      Lcd_Refreshbuff(x,y+20,stat);
    }
    break;
    
    case 15:
    {
      Lcd_DrawDiamond(x,y,c);
      Lcd_DrawDiamond(x,y+10,c);
      Lcd_DrawDiamond(x+10,y+10,c);
      Lcd_DrawDiamond(x+20,y+10,c);
      
      Lcd_Refreshbuff(x,y,stat);
      Lcd_Refreshbuff(x,y+10,stat);
      Lcd_Refreshbuff(x+10,y+10,stat);
      Lcd_Refreshbuff(x+20,y+10,stat);
    }
    break;
    
    
    case 16:
    {
      Lcd_DrawDiamond(x+10,y,c);
      Lcd_DrawDiamond(x,y+10,c);
      Lcd_DrawDiamond(x+10,y+10,c);
      Lcd_DrawDiamond(x,y+20,c);
      
      Lcd_Refreshbuff(x+10,y,stat);
      Lcd_Refreshbuff(x,y+10,stat);
      Lcd_Refreshbuff(x+10,y+10,stat);
      Lcd_Refreshbuff(x,y+20,stat);
    }
    break;
    
    case 17:
    {
      Lcd_DrawDiamond(x,y,c);
      Lcd_DrawDiamond(x+10,y,c);
      Lcd_DrawDiamond(x+10,y+10,c);
      Lcd_DrawDiamond(x+20,y+10,c);
      
      Lcd_Refreshbuff(x,y,stat);
      Lcd_Refreshbuff(x+10,y,stat);
      Lcd_Refreshbuff(x+10,y+10,stat);
      Lcd_Refreshbuff(x+20,y+10,stat);
    }
    break;
    
    case 18:
    {
      Lcd_DrawDiamond(x,y,c);
      Lcd_DrawDiamond(x,y+10,c);
      Lcd_DrawDiamond(x+10,y+10,c);
      Lcd_DrawDiamond(x+10,y+20,c);
      
      Lcd_Refreshbuff(x,y,stat);
      Lcd_Refreshbuff(x,y+10,stat);
      Lcd_Refreshbuff(x+10,y+10,stat);
      Lcd_Refreshbuff(x+10,y+20,stat);
    }
    break;
    case 19:
    {
      Lcd_DrawDiamond(x,y+10,c);
      Lcd_DrawDiamond(x+10,y+10,c);
      Lcd_DrawDiamond(x+10,y,c);
      Lcd_DrawDiamond(x+20,y,c);
      
      Lcd_Refreshbuff(x,y+10,stat);
      Lcd_Refreshbuff(x+10,y+10,stat);
      Lcd_Refreshbuff(x+10,y,stat);
      Lcd_Refreshbuff(x+20,y,stat);
    }
    break;
  }
}
 3.6 方块移动和切换方向
/******************向下移动*****************/
int Lcd_DownMove(u16 x,u16 y,u16 what,u16 c)
{
  Lcd_Drawshape(x,y,what,WHITE,0);
  Lcd_Drawshape(x,y+10,what,c,1);
  return y+10;
}
/***************向左移动*********************/
int Lcd_LeftMove(u16 x,u16 y,u16 what,u16 c)
{
  Lcd_Drawshape(x,y,what,WHITE,0);
  Lcd_Drawshape(x-10,y,what,c,1);
  return x-10;
}
/****************向右移动********************/
int Lcd_RightMove(u16 x,u16 y,u16 what,u16 c)
{
  Lcd_Drawshape(x,y,what,WHITE,0);
  Lcd_Drawshape(x+10,y,what,c,1);
  return x+10;
}
/**************************改变图形***************/
u8 Lcd_Changshape(u16 x,u16 y,u16 what,u16 c)
{
  u8 stat;
  switch(what)
  {
    case 1:stat=1;break;
    
    case 2:
    {
      if(shape_place_stat[(y+40)/10][x/10] || shape_place_stat[(y+30)/10][x/10] || shape_place_stat[(y+20)/10][x/10] || shape_place_stat[(y+10)/10][x/10])
      {
        stat=2;
        break;  
      }
      Lcd_Drawshape(x,y,2,WHITE,0);Lcd_Drawshape(x,y,3,c,1);stat=3;break;
    }
    case 3:
    {
      if(shape_place_stat[(y+40)/10][(x+40)/10])
      {
        stat=3;
        break;  
      }
      Lcd_Drawshape(x,y,3,WHITE,0);Lcd_Drawshape(x,y,2,c,1);stat=2;break;
    }
    case 4:
    {
      Lcd_Drawshape(x,y,4,WHITE,0);Lcd_Drawshape(x,y,5,c,1);stat=5;break;
    }
    case 5:
    {
      Lcd_Drawshape(x,y,5,WHITE,0);Lcd_Drawshape(x,y,6,c,1);stat=6;break;
    }
    case 6:
    {
      if(shape_place_stat[y/10][(x+30)/10])
      {
          stat=6;
          break;
      }
      Lcd_Drawshape(x,y,6,WHITE,0);Lcd_Drawshape(x,y,7,c,1);stat=7;break;
    }
    case 7:Lcd_Drawshape(x,y,7,WHITE,0);Lcd_Drawshape(x,y,4,c,1);stat=4;break;
    
    case 8:
    {
      if(shape_place_stat[y/10][(x+30)/10])
      {
        stat=8;
        break;
      }
      Lcd_Drawshape(x,y,8,WHITE,0);Lcd_Drawshape(x,y,9,c,1);stat=9;break;
    }
    case 9:
    {
      if(shape_place_stat[(y+30)/10][x/10])
      {
        stat=9;
        break;
      }
      Lcd_Drawshape(x,y,9,WHITE,0);Lcd_Drawshape(x,y,10,c,1);stat=10;break;
    }
    case 10:
    {
      if(shape_place_stat[y/10][(x+30)/10])
      {
        stat=10;
        break;
      }
      Lcd_Drawshape(x,y,10,WHITE,0);Lcd_Drawshape(x,y,11,c,1);stat=11;break;
    }
    case 11:
    {
      if(shape_place_stat[(y+30)/10][x/10])
      {
        stat=11;
        break;
      }
      Lcd_Drawshape(x,y,11,WHITE,0);Lcd_Drawshape(x,y,8,c,1);stat=8;break;
    }
    
    case 12:
    {
      if(shape_place_stat[(y)/10][(x+30)/10] || shape_place_stat[(y+20)/10][x/10] || shape_place_stat[(y+20)/10][(x+30)/10])
      {
        stat=12;
        break;
      }
      Lcd_Drawshape(x,y,12,WHITE,0);Lcd_Drawshape(x,y,13,c,1);stat=13;break;
    }
    case 13:
    {
      if(shape_place_stat[(y+30)/10][x/10])
      {
        stat=13;
        break;
      }
      Lcd_Drawshape(x,y,13,WHITE,0);Lcd_Drawshape(x,y,14,c,1);stat=14;break;
    }
    case 14:
    {
      if(shape_place_stat[y/10][(x+30)/10])
      {
        stat=14;
        break;
      }
      Lcd_Drawshape(x,y,14,WHITE,0);Lcd_Drawshape(x,y,15,c,1);stat=15;break;
    }
    case 15:
    {
      if(shape_place_stat[(y+30)/10][x/10])
      {
        stat=15;
        break;
      }
      Lcd_Drawshape(x,y,15,WHITE,0);Lcd_Drawshape(x,y,12,c,1);stat=12;break;
    }
    
    case 16:
    {
      if(shape_place_stat[y/10][(x+30)/10])
      {
        stat=16;
        break;
      }
      Lcd_Drawshape(x,y,16,WHITE,0);Lcd_Drawshape(x,y,17,c,1);stat=17;break;
    }
    case 17:
    {
      Lcd_Drawshape(x,y,17,WHITE,0);Lcd_Drawshape(x,y,16,c,1);stat=16;break;
    }
    
    case 18:
    {
      if(shape_place_stat[y/10][(x+30)/10])
      {
        stat=18;
        break;
      }
      Lcd_Drawshape(x,y,18,WHITE,0);Lcd_Drawshape(x,y,19,c,1);stat=19;break;
    }
    case 19:
    {
      Lcd_Drawshape(x,y,19,WHITE,0);Lcd_Drawshape(x,y,18,c,1);stat=18;break;
    }
  }  
  return stat;
}
 3.7 判断是否到达边界
/*判断状态*/
u8 Lcd_Shape_GetStat(u16 x,u16 y)
{
  //printf("x=%d,y=%d\r\n",x,y);
  //printf("stat=%d\r\n",shape_place_stat[y/10][x/10+1]);
  if(shape_place_stat[y/10][x/10+1])return 1;
  else return 0;  
}
//每个方块高度         //1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9
const u8 shape_high[19]={2,1,4,2,3,3,2,3,2,3,2,3,2,3,2,3,2,3,2};
//保存每个方块宽度      //1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9
const u8 shape_widht[19]={2,4,1,3,2,2,3,2,3,2,3,2,3,2,3,2,3,2,3};
/****************判断是否到到达下边界***************/
u8 Lcd_Shape_GetLowerBoundary(u16 x,u16 y,u8 cnt)
{  
  switch (cnt)
  {
    case 1:
    {
      if(shape_place_stat[(y+20)/10][x/10+1])return 1;
      else if(shape_place_stat[(y+20)/10][(x+10)/10+1])return 2;
    }
    break;
    case 2:
    {
      if(shape_place_stat[(y+10)/10][x/10+1])return 1;
      else if(shape_place_stat[(y+10)/10][(x+10)/10+1])return 2;
      else if(shape_place_stat[(y+10)/10][(x+20)/10+1])return 3;
      else if(shape_place_stat[(y+10)/10][(x+30)/10+1])return 4;
    }
    break;
    case 3:
    {
      if(shape_place_stat[(y+40)/10][x/10+1])return 1;
    }
    break;
    case 4:
    {
      if(shape_place_stat[(y+20)/10][x/10+1])return 1;
      else if(shape_place_stat[(y+20)/10][(x+10)/10+1])return 2;
      else if(shape_place_stat[(y+20)/10][(x+20)/10+1])return 3;
    }
    break;
    case 5:
    {
      if(shape_place_stat[(y+30)/10][x/10+1])return 1;
      else if(shape_place_stat[(y+20)/10][(x+10)/10+1])return 2; 
    }
    break;
    case 6:
    {
      if(shape_place_stat[(y+20)/10][x/10+1])return 1;
      else if(shape_place_stat[(y+30)/10][(x+10)/10+1])return 2;
    }
    break;
    case 7:
    {
      if(shape_place_stat[(y+10)/10][x/10+1])return 1;
      else if(shape_place_stat[(y+20)/10][(x+10)/10+1])return 2; 
      else if(shape_place_stat[(y+10)/10][(x+20)/10+1])return 3;
    }
    break;
    case 8:
    {
      if(shape_place_stat[(y+30)/10][x/10+1])return 1;
      if(shape_place_stat[(y+30)/10][(x+10)/10+1])return 1;
    }
    break;
    case 9:
    {
      if(shape_place_stat[(y+20)/10][x/10+1])return 1;
      else if(shape_place_stat[(y+10)/10][(x+10)/10+1])return 2;
      else if(shape_place_stat[(y+10)/10][(x+20)/10+1])return 3;
    }
    break;
    case 10:
    {
      if(shape_place_stat[(y+10)/10][x/10+1])return 1;
      else if(shape_place_stat[(y+30)/10][(x+10)/10+1])return 2;
    }
    break;    
    case 11:
    {
       if(shape_place_stat[(y+20)/10][x/10+1])return 1;
       else if(shape_place_stat[(y+20)/10][(x+10)/10+1])return 2;   
       else if(shape_place_stat[(y+20)/10][(x+20)/10+1])return 3;        
    }
    break;
    case 12:
    {
      if(shape_place_stat[(y+30)/10][x/10+1])return 1;
      else if(shape_place_stat[(y+30)/10][(x+10)/10+1])return 2;   
    }
    break;
    case 13:
    {
      if(shape_place_stat[(y+10)/10][x/10+1])return 1;
      else if(shape_place_stat[(y+10)/10][(x+10)/10+1])return 2;
      else if(shape_place_stat[(y+20)/10][(x+20)/10+1])return 3;
    }
    break;
    case 14:
    {
      if(shape_place_stat[(y+30)/10][x/10+1])return 1;
      else if(shape_place_stat[(y+10)/10][(x+10)/10+1])return 2;   
    }
    break;
    case 15:
    {
       if(shape_place_stat[(y+20)/10][x/10+1])return 1;
       else if(shape_place_stat[(y+20)/10][(x+10)/10+1])return 2;    
       else if(shape_place_stat[(y+20)/10][(x+20)/10+1])return 3;       
    }
    break;
    case 16:
    {
       if(shape_place_stat[(y+30)/10][x/10+1])return 1;
       else if(shape_place_stat[(y+20)/10][(x+10)/10+1])return 2;           
    }
    break;
    case 17:
    {
       if(shape_place_stat[(y+10)/10][x/10+1])return 1;
       else if(shape_place_stat[(y+20)/10][(x+10)/10+1])return 2;  
       else if(shape_place_stat[(y+20)/10][(x+20)/10+1])return 2;        
    }
    break;
    case 18:
    {
      if(shape_place_stat[(y+20)/10][x/10+1])return 1;
      else if(shape_place_stat[(y+30)/10][(x+10)/10+1])return 2;
    }
    break;
    case 19:
    {
      if(shape_place_stat[(y+20)/10][x/10+1])return 1;
      else if(shape_place_stat[(y+20)/10][(x+10)/10+1])return 2;
      else if(shape_place_stat[(y+10)/10][(x+20)/10+1])return 3;
    }
    break;
  } 
  return 0;  
}
 3.8 将上一行方块放到当前行
/******************将上一行方块放到当前行************************/
static void Lcd_ClearOneLine(u8 line)
{
  u8 i=1;
  for(i=1;i<23;i++)
  {
    if(shape_place_stat[line][i])Lcd_DrawDiamond((i-1)*10+2,line*10,BLACK);
    else Lcd_DrawDiamond((i-1)*10+2,line*10,WHITE);
    //shape_place_stat[line][i]=shape_place_stat[line-1][i];
  }
}
 3.9 判断得分,消行,清除方块在二维数组状态
/***********得分判断*********************/
u8 Lcd_GetMark(u8 *buff)
{
  int i,j,k;
  u8 cnt=0;//保存要消除的行数
  int line=0;
  /*判断当前最高位置*/
  for(i=47;i>=0;i--)//高度
  {
    for(j=1;j<23;j++)//每一行的方格数
    {
      if(shape_place_stat[i][j])break;
    }
    if(j==23)
    {
      line=i;//记录当前方块有多少行
      break;
    }
  }
//  printf("line=%d\r\n",line);
  if(line<=1)return 0xff;//游戏结束
  for(i=47;i>line;i--)
  {
    for(j=0;j<24;j++)
    {
      if(shape_place_stat[i][j]==0)break;
    }
    if(j==24)buff[cnt++]=i;//记录哪一行需要消除
  }
  /*得分,消行*/
  if(cnt)
  {
    for(i=0;i<cnt;i++)
    {
      Lcd_ClearOneLineDisplay(buff[i]*10,RED);/*清除一行*/
    }
    Delay_Ms(500);
    for(i=0;i<cnt;i++)
    {
      Lcd_ClearOneLineDisplay(buff[i]*10,WHITE);/*清除一行*/
    } 
    /*将方块往下移动*/
    for(k=cnt-1;k>=0;k--)
    {
      for(j=buff[k];j>=line;j--)
      {
          for(i=0;i<24;i++)
          {
              shape_place_stat[j][i]=shape_place_stat[j-1][i];
          }
      }
      line--;
    }
    
    for(i=buff[0];i>=line;i--)
   {
      Lcd_ClearOneLine(i);
   }
  }
  if(cnt==0)cnt=0;
  else if(cnt==1)cnt=1;//消除1行得1分
  else if(cnt==2)cnt=4;//消除2行得4分
  else if(cnt==3)cnt=8;
  else if(cnt==4)cnt=16;
  return cnt; 
}
/*清空图形掉落位置状态信息*/
void Lcd_Clearshape(void)
{
  int i,j;
  for(i=0;i<48;i++)
  {
    for(j=1;j<23;j++)
    {
      shape_place_stat[i][j]=0;
    }
  }
}
 3.10 窗口绘制
/*******************************绘制显示窗口**************************/
void Lcd_TetrisShowWind(void)
{
  LCD_DrawLine(LCD_WIDTH-97, 0, LCD_WIDTH-97, LCD_HIGHT,BLACK);//画直线
  LCD_DrawLine(LCD_WIDTH-96, 0, LCD_WIDTH-96, LCD_HIGHT,BLACK);//画直线
  LCD_DrawLine(LCD_WIDTH-96, 170, LCD_WIDTH-1, 170,BLACK);
  LCD_DrawLine(LCD_WIDTH-96, 171, LCD_WIDTH-1, 171,BLACK);
  LCD_Display_Str(LCD_WIDTH-96+25,30,24,(u8 *)"NEXT",DARKBLUE);//显示字符串
  LCD_Display_Str(LCD_WIDTH-96+25,200,16,(u8 *)"得 分",DARKBLUE);//显示字符串
  LCD_Display_Str(LCD_WIDTH-96+96/2-12,200+30,24,(u8 *)"0",RED);//显示字符串
  LCD_Display_Str(LCD_WIDTH-96+10,320,16,(u8 *)"旋转 KEYUP ",DARKBLUE);//显示字符串
  LCD_Display_Str(LCD_WIDTH-96+10,360,16,(u8 *)"暂停 KEY1",DARKBLUE);//显示字符串
  LCD_Display_Str(LCD_WIDTH-96+10,400,16,(u8 *)"左 KEY2  ",DARKBLUE);//显示字符串
  LCD_Display_Str(LCD_WIDTH-96+10,440,16,(u8 *)"右 KEY0",DARKBLUE);//显示字符串
}
4.主函数
#include "stm32f10x.h"
#include "beep.h"
#include "led.h"
#include "key.h"
#include "delay.h"
#include "usart.h"
#include "w25q64.h"
#include "timer.h"
#include <string.h>
#include "nt35310.h"
#include "tetris_game.h"
#include <stdlib.h>
int main()
{
  u8 buff[49];
  u8 stat=1;
  int x0=112,y0=0;
  u16 cnt=1,cnt2=0;
  u8 key;
  u16 mark=0,res,mark2=0;
  u16 color;//方块颜色
  u16 i=200;
  Beep_Init();
  Led_Init();
  Key_Init();//按键初始化
  TIMx_Init(TIM4,7200,65535);
  Usartx_Init(USART1,115200,72);
  printf("串口初始化完成\r\n");
  W25Q64_Init();
  LCD_Init();
AA:
  LCD_Clear(WHITE);//清屏函数
  Lcd_TetrisShowWind();
  cnt=rand()%20;
  if(cnt==0)cnt=1;
  cnt2=rand()%20;
  if(cnt2==0)cnt2=1;
  Lcd_Drawshape(LCD_WIDTH-96+35,80,cnt2,BLACK,0);
  /*俄罗斯方块示例图*/
//  for(i=1;i<=19;i++)
//  {
//    if(i==1)color=Drawshape_color[0];
//    else if(i>=2 && i<=3)color=Drawshape_color[1];
//    else if(i>=4 && i<=7)color=Drawshape_color[2];
//    else if(i>=8 && i<=15)color=Drawshape_color[3];
//    else if(i>=16 && i<=19)color=Drawshape_color[4];
//    Lcd_Drawshape(x0,y0,i,color,0);//绘制图形
//    x0+=50;
//    if(x0>=260)
//    {
//      x0=50;
//      y0+=50;
//    }
//  }
  while(1)
  { 
    key=Key_Getval();
    if(key==3)//暂停
    {
      stat=!stat;
    }
    else if((key==1) && stat)//切换方向
    {
      i=0;
      if(cnt==1)color=Drawshape_color[0];
      else if(cnt>=2 && cnt<=3)color=Drawshape_color[1];
      else if(cnt>=4 && cnt<=7)color=Drawshape_color[2];
      else if(cnt>=8 && cnt<=15)color=Drawshape_color[3];
      else if(cnt>=16 && cnt<=19)color=Drawshape_color[4];
      cnt=Lcd_Changshape(x0,y0,cnt,color);
    }
    else if((key==2) && stat)//右
    {
      if(Lcd_Shape_GetStat(x0+shape_widht[cnt-1]*10,y0)==0)
      {
        if(cnt==1)color=Drawshape_color[0];
        else if(cnt>=2 && cnt<=3)color=Drawshape_color[1];
        else if(cnt>=4 && cnt<=7)color=Drawshape_color[2];
        else if(cnt>=8 && cnt<=15)color=Drawshape_color[3];
        else if(cnt>=16 && cnt<=19)color=Drawshape_color[4];
        x0=Lcd_RightMove(x0,y0,cnt,color);
      }
    }
    else if((key==4) && stat)//左
    {
      if(x0>=10)
      {
        if(Lcd_Shape_GetStat(x0-10,y0)==0)
        {
          if(cnt==1)color=Drawshape_color[0];
          else if(cnt>=2 && cnt<=3)color=Drawshape_color[1];
          else if(cnt>=4 && cnt<=7)color=Drawshape_color[2];
          else if(cnt>=8 && cnt<=15)color=Drawshape_color[3];
          else if(cnt>=16 && cnt<=19)color=Drawshape_color[4];
          x0=Lcd_LeftMove(x0,y0,cnt,color);
        }
      }
    }
    if(i>=100 && stat)
    {
      i=0;
      if(cnt==1)color=Drawshape_color[0];
      else if(cnt>=2 && cnt<=3)color=Drawshape_color[1];
      else if(cnt>=4 && cnt<=7)color=Drawshape_color[2];
      else if(cnt>=8 && cnt<=15)color=Drawshape_color[3];
      else if(cnt>=16 && cnt<=19)color=Drawshape_color[4];
      y0=Lcd_DownMove(x0,y0,cnt,color);//向下
      if(Lcd_Shape_GetLowerBoundary(x0,y0,cnt))//
      {
        res=Lcd_GetMark(buff);
        if(res==0xff)
        {
          mark=0;
          res=0;
          LCD_Display_Str(LCD_WIDTH/2-9*12,230,24,(u8 *)"GAME OVER",RED);
          LCD_Display_Str(LCD_WIDTH/2-9*12-20,265,16,(u8 *)"请按任意键重新开始!",RED);
          while(1)
          {
            key=Key_Getval();  
            if(key)
            {
              Lcd_Clearshape();
              goto AA;
            }
          }
        }
        mark+=res;
        if(mark2!=mark)
        {
          mark2=mark;
          snprintf((char *)buff,sizeof(buff),"%02d",mark2);
          LCD_Display_Str(LCD_WIDTH-94,230,24,(u8 *)"       ",WHITE);//显示字符串
          LCD_Display_Str(LCD_WIDTH-94+96/2-strlen((char *)buff)*12,230,24,buff,RED);//显示字符串
        }
       // printf("得分:%d\r\n",mark);
        x0=112,y0=0;
        Lcd_Drawshape(LCD_WIDTH-96+35,80,cnt2,WHITE,0);
        cnt=cnt2;
        cnt2=rand()%20;
        if(cnt2==0)cnt2=1;
        Lcd_Drawshape(LCD_WIDTH-96+35,80,cnt2,BLACK,0);
      }
    } 
    Delay_Ms(1);
    i++;
  }
}